| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] why do [not/n't] | 281 |
|
| 2 | then [adv] do [not/n't] | 59 |
|
| 3 | then why [verb] [not/n't] | 55 |
|
| 4 | then why do [adv] | 51 |
|
